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jessyInk_view.py

#!/usr/bin/env python
# Copyright 2008, 2009 Hannes Hochreiner
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see http://www.gnu.org/licenses/.

# These lines are only needed if you don't put the script directly into
# the installation directory
import sys
# Unix
sys.path.append('/usr/share/inkscape/extensions')
# OS X
sys.path.append('/Applications/Inkscape.app/Contents/Resources/extensions')
# Windows
sys.path.append('C:\Program Files\Inkscape\share\extensions')

# We will use the inkex module with the predefined Effect base class.
import inkex

def propStrToList(str):
      list = []
      propList = str.split(";")
      for prop in propList:
            if not (len(prop) == 0):
                  list.append(prop.strip())
      return list

def propListToDict(list):
      dictio = {}

      for prop in list:
            keyValue = prop.split(":")

            if len(keyValue) == 2:
                  dictio[keyValue[0].strip()] = keyValue[1].strip()

      return dictio

00048 class JessyInk_Effects(inkex.Effect):
      def __init__(self):
            # Call the base class constructor.
            inkex.Effect.__init__(self)

            self.OptionParser.add_option('--tab', action = 'store', type = 'string', dest = 'what')
            self.OptionParser.add_option('--viewOrder', action = 'store', type = 'string', dest = 'viewOrder', default = 1)
            self.OptionParser.add_option('--viewDuration', action = 'store', type = 'float', dest = 'viewDuration', default = 0.8)
            self.OptionParser.add_option('--removeView', action = 'store', type = 'inkbool', dest = 'removeView', default = False)

            inkex.NSS[u"jessyink"] = u"https://launchpad.net/jessyink"

      def effect(self):
            # Check version.
            scriptNodes = self.document.xpath("//svg:script[@jessyink:version='1.5.1']", namespaces=inkex.NSS)

            if len(scriptNodes) != 1:
                  sys.stderr.write("The JessyInk script is not installed in this SVG file or has a different version than the JessyInk extensions. Please select \"install/update...\" from the \"JessyInk\" sub-menu of the \"Effects\" menu to install or update the JessyInk script.\n\n")

            rect = None

            for id, node in self.selected.items():
                  if rect == None:
                        rect = node
                  else:
                        sys.stderr.write("More than one object selected. Please select only one object.\n")
                        exit()

            if rect == None:
                  sys.stderr.write("No object selected. Please select the object you want to assign a view to and then press apply.\n")
                  exit()

            if not self.options.removeView:
                  # Remove the view that currently has the requested order number.
                  for node in rect.xpath("ancestor::svg:g[@inkscape:groupmode='layer']/descendant::*[@jessyink:view]", namespaces=inkex.NSS):
                        propDict = propListToDict(propStrToList(node.attrib["{" + inkex.NSS["jessyink"] + "}view"]))
      
                        if propDict["order"] == self.options.viewOrder:
                              del node.attrib["{" + inkex.NSS["jessyink"] + "}view"]
                  
                  # Set the new view.
                  rect.set("{" + inkex.NSS["jessyink"] + "}view","name:view;order:" + self.options.viewOrder + ";length:" + str(int(self.options.viewDuration * 1000)))

                  # Remove possible effect arguments.
                  if rect.attrib.has_key("{" + inkex.NSS["jessyink"] + "}effectIn"):
                        del rect.attrib["{" + inkex.NSS["jessyink"] + "}effectIn"]

                  if rect.attrib.has_key("{" + inkex.NSS["jessyink"] + "}effectOut"):
                        del rect.attrib["{" + inkex.NSS["jessyink"] + "}effectOut"]
            else:
                  if node.attrib.has_key("{" + inkex.NSS["jessyink"] + "}view"):
                        del node.attrib["{" + inkex.NSS["jessyink"] + "}view"]
            
# Create effect instance
effect = JessyInk_Effects()
effect.affect()


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